Diki,

Its well known that many manufacturers utilize better components in their higher end products and the result is a broader frequency response and lower signal to noise ratio. For example... Roland made the R880 Reverb as well as the SRV330 reverb which supposedly used many of the same algorithms. The R880 was around $5K, the SRV330 about $1K. While some of the algorithms may have been similar the sound of these two devices was in no way similar. The R880 utilized high end 24 BIT Burr Brown AD/DA converters, WIMA high grade capacitors throughout, and two power supplies, one for the analog side and one for the digital side. Auditioning these two units side by side using the same type of rooms, halls, or plates would easily open anyones ears as to why there was a huge price difference.

Roland also uses these same build methods in their professional keyboard line. Their top of the line instruments have better AD/DA, high end capacitors, and more robust power supplies. Just because they don't tout these differences doesn't mean they don't exist.

I know you believe your beloved G70 to be on par with the Atelier Series but I'm sure if you put them side by side you wouldn't be saying that they were comparable. Sometimes you do have to play an instrument in person to know the sonic differences.